spec: removes unneeded calculator specs
spec: removes unneeded calculator specs

fixes VICE-2619
flag=none

these specs have been bad since the beginning.
originally, the worklow state wasn't really being
set to concluded.

now, when you run the tests,
@calculator.uncached_fully_visible_group_ids does not
include the group ids. if this is the case, and
no bug has been reported regarding messageable users
for concluded students, then we can assume that things
are working as expected and these specs are invalid

Change-Id: I305979add63e766d2b52057f0c6913c6b40b622b
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/290079
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>
Reviewed-by: Drake Harper <798ef92bc86a79e8ff768a68dc0a5fcec1d51660@instructure.com>
QA-Review: Drake Harper <798ef92bc86a79e8ff768a68dc0a5fcec1d51660@instructure.com>
Product-Review: Drake Harper <798ef92bc86a79e8ff768a68dc0a5fcec1d51660@instructure.com>

instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms